About: http://webisa.webdatacommons.org/116861591

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	There???s been a TV special, books and much newsprint speculating on its cause ??? volcanoes, comets and other catastrophes have been suggested.
http://www.w3.org/ns/prov#wasQuotedFrom	realclimate.org